So here is a weird one. In the house we have a Panasonic KX-TG5623 5.8 GHz cordless phone and a Uniden PowerMax 5.8 GHz cordless phone.

I don’t run on wifi too much but my wife does. She started to notice that the wifi signal would drop off from time to time… Then she noticed that every time the phone would ring the signal would drop. It would come back up right away; you could take the call and be on wifi, but that initial ring would cause the drop off.

To fix the issue, I launched the Airport Utility, click on Airport icon in the top, and then the Wireless tab. I changed the channel to 5 and it seems to be good for both phones.